wannacry | dec4212f32b5eb108b4da02d0f41d07eeea7fd632c49219973975f31fcbdf032

General

Target

2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Size

3.6MB
MD5

a43cd93d0eaa3c428d41ec889f3bd122
SHA1

a12041ac43956ebf21b0a0f570d89d4c1c36937f
SHA256

dec4212f32b5eb108b4da02d0f41d07eeea7fd632c49219973975f31fcbdf032
SHA512

06b8feee87739705198b1b71f5e61b1daebdfdfc91f3aa58021cfd86ae75179fe324fabde0903149a895bdec859fbcd740a99380614f732295270bc92877d219
SSDEEP

49152:8nQQqMSPbcBVQejqSqTdX1HkQo6SAARdhnv:czqPoBhWSUDk36SAEdhv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3108) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Executes dropped EXE 1 IoCs

pid	Process
2712	tasksche.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe

Modifies data under HKEY_USERS 21 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadDecision = "0"	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadDecisionReason = "1"	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\32-b4-8e-3c-a1-cb	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb\WpadDecisionTime = 30b855ee7c33db01	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadNetworkName = "Network 3"	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb\WpadDecisionReason = "1"	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb\WpadDecision = "0"	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0168000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadDecisionTime = 30b855ee7c33db01	2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2400
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2712

C:\Users\Admin\AppData\Local\Temp\2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-10_a43cd93d0eaa3c428d41ec889f3bd122_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
f623da5b118a6de834dd317868d1800c

SHA1
ee8ce503e2552d6ba5ac1bb0ab07889d3a39ff74

SHA256
97fdbfe06eeddda9cc613217f22ba7d0050b9f9215aa0bb7cbbc153da0394b68

SHA512
f63ad8f687b433cdcfa9987f2dd216f9a7f6aeadb650a1f60ca70adf956d9f89c6c04a8f953bf73ecbc1e318627909d248c9d8c56424f2bcca84e5664178edbd

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